Question

Which of the following equations are identities? Check all that apply.

Answer 1

\[\tan x = \frac{ 1 }{ \sec x }\]

Answer 2

No

Answer 3

\[\sec x =\frac{ 1 }{ \csc x }\]

Answer 4

No

Answer 5

\[\csc x = \frac{ 1 }{ \sin x }\]

Answer 6

Yes

Answer 7

\[\tan x =\frac{ \sin x }{ \cos x }\]

Answer 8

Yes

Answer 9

hehe